Home / 8,172.92-11,278.30-4,636.06

Finding the Fourth Proportional to 8,172.92, 11,278.30 and 4,636.06

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Solution

The fourth proportional to 8,172.92, 11,278.30 and 4,636.06 is: 6,397.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172.92 : 11,278.30 = 4,636.06 : x
  2. Step 2: Convert to fraction form
    8,172.92/11,278.30 = 4,636.06/x
  3. Step 3: Cross multiply
    8,172.92x = 11,278.30 × 4,636.06
  4. Step 4: Simplify right side
    8,172.92x = 52,286,875.50
  5. Step 5: Solve for x
    x = 52,286,875.50/8,172.92
  6. Step 6: Final answer
    x = 6,397.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.